TY - CHAP AU - Notari, Michele AU - Döbeli, Beat TI - Wiki: an archetypical tool for collaborative learning in the digital age T2 - Wiki supporting formal and informal learning PY - 2011 SP - 21 EP - 40 UR - http://goo.gl/HPYa6 ED - Bocconi, Stefania ED - Trentin, Guglielmo ET - VL - PB - Nova Publishers CY - New York ER -